Synthetic reinforcing strands with spaced filaments
US5866253A · kind A · utility
130Cited by
12References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1997 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Aug 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/699
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention disclosed herein is a synthetic reinforcing strand of filaments in which the strand density is reduced by spacing the filaments apart along their length with heat expandable hollow particles such as plastic microspheres expanded into microballoons and the method of making such strands. Also embodied in the invention are methods utilizing such strands in processes for making composite structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.